Comparative evaluation of the effectiveness and safety of two regimens of levonorgestrel for emergency contraception in Nigerians

AO Arowojolu, IA Okewole, AO Adekunle - Contraception, 2002 - Elsevier
Emergency contraception was introduced in Nigeria over two decades ago, but few women
have used this method even in emergency situations because of the side effects. To find an …

A randomized, double-blind, noninferiority study to compare two regimens of levonorgestrel for emergency contraception in Nigeria

OA Dada, EM Godfrey, G Piaggio, H von Hertzen - Contraception, 2010 - Elsevier
BACKGROUND: Unplanned pregnancies are common in Nigeria. Much of the unplanned
pregnancies is due to low contraceptive prevalence and high contraceptive user failure …

Effect on pregnancy rates of the delay in the administration of levonorgestrel for emergency contraception: a combined analysis of four WHO trials

G Piaggio, N Kapp, H Von Hertzen - Contraception, 2011 - Elsevier
BACKGROUND: Levonorgestrel is an effective method for emergency contraception (EC)
and is used worldwide. Consistent with its mechanism of action in delaying ovulation, the …

A systematic review of effectiveness and safety of different regimens of levonorgestrel oral tablets for emergency contraception

M Shohel, MM Rahman, A Zaman, MMN Uddin… - BMC Women's …, 2014 - Springer
Background Unintended pregnancy is a complex phenomenon which raise to take an
emergency decision. Low contraceptive prevalence and high user failure rates are the …

A randomized trial to compare 24 h versus 12 h double dose regimen of levonorgestrel for emergency contraception

S Wai Ngai, S Fan, S Li, L Cheng, J Ding… - Human …, 2005 - academic.oup.com
Abstract BACKGROUND: Levonorgestrel (0.75 mg given for two doses 12 h apart) has been
proven to be an effective regimen for emergency contraception when the first dose is given …

Menstrual bleeding patterns following levonorgestrel emergency contraception

E Gainer, B Kenfack, E Mboudou, AS Doh, J Bouyer - Contraception, 2006 - Elsevier
PURPOSE: Multiple trials by the World Health Organization have established levonorgestrel
as the gold standard in hormonal emergency contraception (EC). However, changes in …

Effectiveness of levonorgestrel emergency contraception given before or after ovulation—a pilot study

N Novikova, E Weisberg, FZ Stanczyk, HB Croxatto… - Contraception, 2007 - Elsevier
BACKGROUND: Although widely used, the mechanisms of action of the levonorgestrel
emergency contraceptive pill (LNG ECP) are still unclear. There are increasing data to …

Oral emergency contraception with levonorgestrel plus piroxicam: a randomised double-blind placebo-controlled trial

RHW Li, SST Lo, K Gemzell-Danielsson, CHY Fong… - The Lancet, 2023 - thelancet.com
Background Levonorgestrel, a standard drug for emergency contraception (EC), is not
effective if administered post-ovulation. A cyclo-oxygenase inhibitor could contribute …

Levonorgestrel-only emergency contraception: real-world tolerance and efficacy

E Gainer, C Méry, A Ulmann - Contraception, 2001 - Elsevier
Levonorgestrel-only emergency contraception was introduced onto the market in France in
May 1999 on the heels of a large-scale clinical trial demonstrating its enhanced efficacy and …

Emergency contraception: survey of knowledge, attitudes and practice of health care professionals in Ibadan, Nigeria

A O. Adekunle, AO Arowojolu, AA … - Journal of Obstetrics …, 2000 - Taylor & Francis
This survey was conducted to determine the knowledge, and prescribing attitudes of
emergency contraception among healthcare professionals in Ibadan, Nigeria. A …